Multimodal Content Checker: Can AI Understand Your Media?
Multimodal AI engines read text, but they rely on descriptions to make sense of images, video, and audio. When your media has no alt text, captions, or transcripts, it is effectively invisible to these models. Glippy checks how well your media is described so multimodal AI can actually use it.
What Is Multimodal Content?
Multimodal content is anything beyond plain text on your page: images, video, audio, and graphics. Multimodal AI models can in principle process these formats, but on the web they lean heavily on the text descriptions you provide. Alt text, captions, transcripts, and structured data are what turn raw media into something an AI engine can read and reuse.
What Glippy Checks
- Image alt-text quality - descriptive vs generic vs missing alt text
- Figure & figcaption usage - content images wrapped with descriptive captions
- Video & audio accessibility - captions (<track>) and transcripts
- SVG & data-visualization descriptions - title, desc, and aria-label on graphics
- Image structured data - ImageObject schema for richer media understanding
Why Multimodal Signals Matter for AI
AI engines increasingly summarize and cite the media on your pages, but only when they can understand it. Well-described images, captioned video, and transcribed audio give models the context they need to surface your content in answers, while undescribed media is simply skipped. Strong multimodal signals make every part of your page discoverable, not just the text.
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